kafka ChangeLoggingTimestampedWindowBytesStore 源码
kafka ChangeLoggingTimestampedWindowBytesStore 代码
文件路径：/streams/src/main/java/org/apache/kafka/streams/state/internals/ChangeLoggingTimestampedWindowBytesStore.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.streams.state.internals;
import org.apache.kafka.common.utils.Bytes;
import org.apache.kafka.streams.state.WindowStore;
import static org.apache.kafka.streams.state.internals.ValueAndTimestampDeserializer.rawValue;
import static org.apache.kafka.streams.state.internals.ValueAndTimestampDeserializer.timestamp;
class ChangeLoggingTimestampedWindowBytesStore extends ChangeLoggingWindowBytesStore {
ChangeLoggingTimestampedWindowBytesStore(final WindowStore<Bytes, byte[]> bytesStore,
final boolean retainDuplicates) {
super(bytesStore, retainDuplicates, WindowKeySchema::toStoreKeyBinary);
}
@Override
void log(final Bytes key,
final byte[] valueAndTimestamp) {
if (valueAndTimestamp != null) {
context.logChange(name(), key, rawValue(valueAndTimestamp), timestamp(valueAndTimestamp), wrapped().getPosition());
} else {
context.logChange(name(), key, null, context.timestamp(), wrapped().getPosition());
}
}
}
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